IB

Irvin R. Barrows

📍 Overland, MO: #43 of 86 inventorsTop 50%
🗺 Missouri: #13,067 of 23,789 inventorsTop 55%
Overall (All Time): #3,749,855 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5545042 Learning board in combination with solution lists — 1996-08-13